LT1243CS8Alternatives & Equivalent Parts
About LT1243CS8
LT1243CS8 is a Integrated Circuit component manufactured by Analog Devices. It comes in a Small Outline Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | LT1243CS8Source | UC3843BD1R2G |
|---|---|---|
| Manufacturer | Analog Devices | ON Semiconductor |
| Package Type | Small Outline Packages | Small Outline Packages |
| Pin Count | 8 | 8 |
| Temperature Range | ~ 70.0°C | ~ 70.0°C |
| Price | $2.4900 | $0.2038 |
| Stock | In Stock | In Stock |
| Lifecycle | OBSOLETE | ACTIVE |
| Electrical Parameters | ||
| YTEOL | 0 | 7.6 |
| Analog IC - Other Type | SWITCHING CONTROLLER | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION |
| Input Voltage-Max | 25 V | 25 V |
| Input Voltage-Min | 8.2 V | 12 V |
| Input Voltage-Nom | 15 V | 15 V |
| JESD-30 Code | R-PDSO-G8 | R-PDSO-G8 |
| JESD-609 Code | e0 | e3 |
| Number of Functions | 1 | 1 |
| Output Current-Max | 1 A | 1 A |
| Output Voltage-Nom | 2.5 V | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | SMALL OUTLINE |
| Qualification Status | Not Qualified | Not Qualified |
| Supply Current-Max (Isup) | 10 mA | — |
| Surface Mount | YES | YES |
| Switcher Configuration | SINGLE | BUCK-BOOST |
| Switching Frequency-Max | 500 kHz | 500 kHz |
| Technology | BIPOLAR | BIPOLAR |
| Temperature Grade | COMMERCIAL | COMMERCIAL |
| Terminal Finish | Tin/Lead (Sn/Pb) | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING | GULL WING |
| Terminal Pitch | 1.27 mm | 1.27 mm |
| Terminal Position | DUAL | DUAL |
| Pbfree Code | — | Yes |
| Manufacturer Package Code | — | 751-07 |
| Package Equivalence Code | — | SOP8,.25 |
| Peak Reflow Temperature (Cel) | — | 260 |
| Time@Peak Reflow Temperature-Max (s) | — | 30 |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Quick Links
Rochester Electronics LLC 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8, HALOGEN AND LEAD FREE, PLASTIC, SOIC-8
Why Look for Alternatives?
Finding alternatives for LT1243CS8 is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating LT1243CS8 replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to LT1243CS8?
Known equivalents for LT1243CS8 include UC3843BD1R2G. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of LT1243CS8?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify LT1243CS8 alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.